Samsung NX58M6850S Series Service Manual
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Samsung NX58M6850S Series Service Manual

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GAS RANGES
FREESTANDING
GAS RANGES
MODELS AND
MODEL CODES :
NX58M6850S*
1.
7.
CONTENTS

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Table of Contents
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Summary of Contents for Samsung NX58M6850S Series

  • Page 1: Table Of Contents

    FREESTANDING GAS RANGES MODELS AND MODEL CODES : NX58M6850S* GAS RANGES CONTENTS Precautions 2. Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. Wiring Diagrams 6. Schematic Diagrams PCB Diagrams...
  • Page 2 • Contents 1. Precaution ....................4 1-1 Forward .
  • Page 3 • Contents 4. Troubleshooting ..................56 4-1 Information Display Codes .

  • Page 4: Precautions

    • Repairs of the appliance should be carried out by a licensed technician only . Incorrect repairs may result in dangerous situations . If you need repairs, contact a SAMSUNG Service Center or your dealer . • If the power cord is defective, it must be replaced by a licensed technician with a UL-listed range cord .

  • Page 5: Important Safety Instructions

    1. Precautions 1-3 Important Safety Instructions Read and follow all instructions before using or servicing the range to prevent death, personal injury, fire, explosion, and/or property damage. This guide does not cover every possible condition that may occur. For further assistance, contact a licensed technician or the manufacturer .
  • Page 6 1. Precautions SURFACE BURNERS • Use Proper Pan Size – This appliance is equipped with CAUTION one or more surface burners of different sizes . Select utensils having flat bottoms large enough to cover Do not store items of interest to children in the surface burner flames.

  • Page 7: Model And Serial Number Label And Tech Sheet Locations

    1. Precautions SELF-CLEAN OVENS • Important Instruction – In the event the self-clean mode “F” code goes on or three long beeps sound, the oven is malfunctioning in the self-clean mode . Turn off or disconnect appliance from electrical and CAUTION gas supplies and have the appliance serviced by a licensed technician .

  • Page 8: Specifications

    2. Specifications 2-1 Features Features Membrane Control Panel and Digital Display All oven features and functions are controlled and monitored by this easy-to-use control panel . Full-Width, Heavy-Duty Grates Surface Burner Control Knobs 3-piece grates fit into cooktop Opening and Front-top location provides easy access completely cover the cooktop from to enhance usability and safety...

  • Page 9: Table Of Specifications

    2. Specifications 2-2 Table of Specifications NX58K7850SG NX58M6850SG (Basic) (New) Model Single Mode Twin Mode Single Mode Twin Mode Colour Black Stainless Steel Black Stainless Steel Controls Control Type - Oven Carbon Touch Carbon Touch Control Type - Cooktop Weighted Knob Weighted Knob Display Type Digital LED...
  • Page 10 2. Specifications Table of Specifications NX58K7850SG NX58M6850SG Model (Basic) (New) Cooktop Cooktop Type Porcelain Enamel (Black) Porcelain Enamel (Black) Number of Burners Total Power (BTU) 57,000 55,000 Right Front (BTU) 18,000 (Double-ring) 16,000 Right Rear(BTU) 5,000 5,000 Left Front(BTU) 15,000 15,000 Left Rear(BTU) 9,500...
  • Page 11 2. Specifications Table of Specifications NX58K7850SG NX58M6850SG Model (Basic) (New) Drawer Drawer capacity (cu .ft) 0 . 7 0 . 7 Type Storage Storage Drawer Heater Performance Warm . Drawer Temp . Settings Warm . Drawer Handle Accessories/Others Anti-Tip Device Yes (Leg Brackets) Yes (Leg Brackets) Griddle...

  • Page 12: Accessories

    2. Specifications 2-3 Accessories Item Description Code No. Quantity Assy-Grate Side Coating DG94-00937A Assy-Grate Center Coating DG94-00938A Rack-Flat DG75-01001C Assy-Partition Flex DG94-00484A...

  • Page 13: Disassembly And Reassembly

    3. Disassembly and Reassembly 3. Disassembly and Reassembly 3-1 Tool for assembly and disassembly Item How to use Pictures Screw driver Use for assembly and disassembly of all screws Tubing Wrench Use for assembly and disassembly of tubing to the burner cup Use for assembly and disassembly of injector nozzles [Cooktop 7mm Vox Driver / Broil / Bake burner]...

  • Page 14: Removing The Rear Cover Panels

    3. Disassembly and Reassembly 3-2 Removing the Rear Cover Panels WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.
  • Page 15 3. Disassembly and Reassembly 3-2 Removing the Rear Cover Panels Parts Explanation Photo Explanation 6 . Remove 10 screws from the Cover Motor 7 . When service is complete, replace the four cover panels on the back of the range and secure each with the appropriate screws .

  • Page 16: Removing The Assy-Frame Cooktop

    3. Disassembly and Reassembly 3-3 Removing the Assy-Frame Cooktop WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 17: Removing Assy Pcb Main

    3. Disassembly and Reassembly 3-4 Removing ASSY PCB Main WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.
  • Page 18 3. Disassembly and Reassembly 3-4 Removing ASSY PCB Main Parts Explanation Photo Explanation Remove 3 screws of Main PCB ASSY Separate Main PCB from Holder PCB PCB MAIN Separate LED from Holder PCB...

  • Page 19: Removing Assy Pcb Display

    3. Disassembly and Reassembly 3-5 Removing ASSY PCB DISPLAY WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.
  • Page 20 3. Disassembly and Reassembly 3-5 Removing ASSY PCB DISPLAY Parts Explanation Photo Explanation Remove 4 screws of the HOLDER PCB SUB ASSY PCB Remove 2 screws of the ASSY PCB DISPLAY Replace the ASSY PCB SUB .

  • Page 21: Removing Assy Pcb Sub

    3. Disassembly and Reassembly 3-6 Removing ASSY PCB Sub WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 22: Replacing The Spark Module

    3. Disassembly and Reassembly 3-7 Replacing the Spark module WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 23: Removing The Cooling Fan

    3. Disassembly and Reassembly 3-8 Removing the Cooling fan WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 24: Removing The Chassis Manifold Panel, Knob, Switch Ignition

    3. Disassembly and Reassembly 3-9 Removing the Chassis Manifold Panel, Knob, Switch Ignition WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 25: Removing The Valve Cooktop

    3. Disassembly and Reassembly 3-10 Removing the Valve Cooktop WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 26: Replacing The Burner Cup

    3. Disassembly and Reassembly 3-11 Replacing the Burner Cup WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.
  • Page 27 3. Disassembly and Reassembly 3-11 Replacing the Burner Cup Parts Explanation Photo Explanation To replace the electrode, disconnect the wire connectors from the terminal on the spark module . To remove the gas orifice, place the burner cup in a vise and remove the orifice with a 9/32-inch socket wrench .

  • Page 28: Replacing The Assy Door Latch

    3. Disassembly and Reassembly 3-12 Replacing the Assy Door Latch WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 29: Replacing The Door Plunger

    3. Disassembly and Reassembly 3-13 Replacing the Door Plunger WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 30: Replacing The Door Plunger

    3. Disassembly and Reassembly 3-14 Replacing the Door Plunger Parts Explanation Photo Explanation Remove 1 screw of the shield and separate the shield . Shield Disconnect the wire to the door plunger . Carefully pull out the door plunger from the Door upper right corner of the cavity front .

  • Page 31: Replacing The Assy Lamp Bulb

    3. Disassembly and Reassembly 3-15 Replacing the Assy Lamp Bulb WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 32: Replacing The Sensor-Thermistor(Upper/Lower)

    3. Disassembly and Reassembly 3-16 Replacing the Sensor-Thermistor(Upper/Lower) WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 33: Removing Air Supply Fan

    3. Disassembly and Reassembly 3-17 Removing Air Supply Fan WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 34: Replacing The Gasket Door

    3. Disassembly and Reassembly 3-18 Replacing the Gasket Door WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 35: Replacing The Oven Door (Upper)

    3. Disassembly and Reassembly 3-19 Replacing the Oven Door (Upper) WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.
  • Page 36 3. Disassembly and Reassembly 3-19 Replacing the Oven Door (Upper) Parts Explanation Photo Explanation To replace door: Firmly grasp both sides of the door at the top position . Fully open the door . OVEN DOOR (If the door will not fully open, it means that the indentation is not (UPPER) seated correctly in the bottom...

  • Page 37: Replacing The Handle-Door, Glass Inner (Upper)

    3. Disassembly and Reassembly 3-20 Replacing the Handle-Door, Glass Inner (Upper) WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.
  • Page 38 3. Disassembly and Reassembly 3-20 Replacing the Handle-Door, Glass Inner (Upper) Parts Explanation Photo Explanation Lift the door rear assembly off the HANDLE- front assembly and set it aside DOOR Remove 2 spacers and 2 screws .
  • Page 39 3. Disassembly and Reassembly 3-20 Replacing the Handle-Door, Glass Inner (Upper) Parts Explanation Photo Explanation HANDLE- Remove 2 screws to remove Handle- Door DOOR Remove 4 screws to remove the Glass inner sub Back side of this point Remove 6 screws to remove the Assy Hinge Up Remove 7screws or remove Baffle- GLASS-...

  • Page 40: Replacing The Oven Door (Full)

    3. Disassembly and Reassembly 3-21 Replacing the Oven Door (Full) WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.
  • Page 41 3. Disassembly and Reassembly 3-21 Replacing the Oven Door (Full) Parts Explanation Photo Explanation Firmly grasp both sides of the door at the top position . Fully open the door . (If the door will not fully open, it means that OVEN-DOOR the indentation is not seated (FULL)

  • Page 42: Replacing The Glass-Inner (Full Door)

    3. Disassembly and Reassembly 3-22 Replacing the Glass-Inner (Full Door) WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.
  • Page 43 3. Disassembly and Reassembly 3-22 Replacing the Glass-Inner (Full Door) Parts Explanation Photo Explanation Remove the 7 screws to remove the BAFFLE DOOR LOW . OVEN-DOOR Take out the Glass-Inner assembly Glass-Inner assembly (FULL) Unfold 2 flanges of Cover-Frame Inner Glass to taking out Glass- Inner...

  • Page 44: Replacing The Storage Drawer

    3. Disassembly and Reassembly 3-23 Replacing the Storage drawer Parts Explanation Photo Explanation 1. Turn off the electrical supply going to the range . 2. Shut off the gas shut-off valve in the gas supply line to the range . 3.

  • Page 45: Replacing The Burner Broil

    3. Disassembly and Reassembly 3-24 Replacing the Burner Broil WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the rang . Failure to do so can result in death or electrical shock . CAUTION When you work on the gas range, be careful when handling sheet metal parts .

  • Page 46: Replacing The Hot Surface Ignitor (Hsi) Of The Burner Broil

    3. Disassembly and Reassembly 3-25 Replacing the HOT SURFACE IGNITOR (HSI) of the BURNER BROIL, NOZZLE Broil-Burner, and HOLDER Broil-BURNER WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock .

  • Page 47: Replacing The Burner Bake

    3. Disassembly and Reassembly 3-26 Replacing the Burner Bake WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 48: Replacing The Hot Surface Ignitor (Hsi) Of The Burner Bake

    3. Disassembly and Reassembly 3-27 Replacing the HOT SURFACE IGNITOR (HSI) of the BURNER BAKE, NOZZLE BAKE-BURNER, and HOLDER BAKE-BURNER WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock .

  • Page 49: Replacing The Motor Convection

    3. Disassembly and Reassembly 3-28 Replacing the Motor Convection CAUTION When you work on the gas range, be careful when handling sheet metal parts . Sharp edges may be present, and you can cut yourself if you are not careful . Parts Explanation Photo Explanation...

  • Page 50: Replacing The Heater Convection

    3. Disassembly and Reassembly 3-29 Replacing the Heater Convection WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 51: Replacing The Assy Safety Valve

    3. Disassembly and Reassembly 3-30 Replacing the Assy Safety Valve WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.
  • Page 52 3. Disassembly and Reassembly 3-30 Replacing the Assy Safety Valve Parts Explanation Photo Explanation Using a tubing wrench and a channel-lock wrench, disconnect the 2 gas lines from the ASSY VALVE SAFETY . Do not bend or crimp gas lines during removal . Remove gas fittings from the ASSY VALVE SAFETY .

  • Page 53: Replacing Assy Power Cord

    3. Disassembly and Reassembly 3-31 Replacing Assy Power Cord WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.

  • Page 54: Wi-Fi Pcb

    3. Disassembly and Reassembly 3-32 Wi-Fi PCB WARNING ELECTRICAL SHOCK HAZARD Disconnect power before servicing the range . Replace all panels before operating the range . Failure to do so can result in death or electrical shock . WARNING EXPLOSION, FIRE, AND ASPHYXIATION HAZARD Shut off the gas supply to the range before servicing.
  • Page 55 3. Disassembly and Reassembly Wi-Fi PCB Parts Explanation Photo Explanation WiFi holder PCB Hook of Hook of Holder PCB Holder PCB Open the drawer and remove 1 screw of Wi-Fi holder PCB . Push the hook of cover PCB and open the cover PCB .

  • Page 56: Troubleshooting

    4. Troubleshooting 4. Troubleshooting 4-1 Information Display Codes There are two kinds of Information codes. One denotes an oven temperature sensor information and the other denotes a safety Information. Possible information codes during use can be checked before service. 1 . Press the Clock pad . 2 .

  • Page 57: Failure Display Codes

    4. Troubleshooting 4-2 Failure Display Codes Oven Sensor information Information code Meaning Solution Disconnect power . Open the back cover . Oven sensor opened Disconnect sensor harness from control Measure sensor (over 2950Ω) resistance :1080Ω at the room temperature → If there are any problems, replace oven sensor. C-20 If no problem with the oven sensor is found, Please check for damaged terminal or wire on harness .
  • Page 58 4. Troubleshooting Failure Display Codes Information code Meaning Solution Disconnect power . Open the back cover . Disconnect sensor harness from control . M easure sensor resistance :1080Ω at the room temperature → if resistance is abnormal, replace oven sensor . Check the resistance of each broil, bake and convection heater .
  • Page 59 4. Troubleshooting CNS301 Broil Relay “C-21” Bake Relay C . H eater Relay Source Relay Disconnect power and Main PCB Assy Display PCB * Check the DLB, Bake and Broil relay. (Normal:∞ Ω) * Replace Main PCB * Check for any damaged components or parts of PCB . * Repair any damaged area .
  • Page 60 4. Troubleshooting Oven Sensor Error Failure Code Cause Solution Disconnect electrical Power to the range . Remove PCB Sensor Opened the upper rear cover panel . Measure the sensor resistance: C-30 PCB sensor : 3900Ω at the room temperature. Oven sensor : 1080Ω at the room temperature. PCB Sensor Shorted Replace the PCB .
  • Page 61 4. Troubleshooting “C-30” Disconnect power and remove the Main PCB . * Measure PCB sensor resistance * Repair or replace the PCB . (3900Ω at the room temperature) * Repair any damaged area . * Measure oven sensor resistance . (1080Ω...
  • Page 62 4. Troubleshooting Safety Error Failure Code Cause Solution Disconnect power . and remove the PCB . PCB temperature C-31 too high Replace the PCB .
  • Page 63 4. Troubleshooting “C-31” Disconnect power and remove the PCB . *Replace the PCB...
  • Page 64 4. Troubleshooting Failure Display Codes Information code Meaning Solution Check whether cable from the keypad has been inserted into connector on Sub PCB . C-d0 Shorted key Check Sub PCB keypad connector for shorts . If no problems are found with Sub PCB keypad connector replace the Sub PCB .
  • Page 65 4. Troubleshooting Failure Display Codes Information code Meaning Solution Disconnect power . Open the back cover . Check whether harness has been connected with door lock switch and motor . Confirm resistance value of door lock motor is correct(R=1750~1850Ohm) . C-d1 Door lock With door lockout activated, measure voltage of harness...
  • Page 66 4. Troubleshooting Failure Display Codes Information code Meaning Solution Insert a divider in twin mode or remove a divider in Divider sensing single mode . -dC- information Please check divider sensing S/W . “-dC-” Is unit in Single cavity cooking mode? Please take out divider .
  • Page 67 4. Troubleshooting Failure Display Codes Information code Meaning Solution Disconnect power . Open the back cover . Check whether harness has been connected with main pcb and sub pcb Main↔Sub Main :CNS401 <-> Sub (DISPLAY) : CN200 communication error C-F0 Main : CN304 <->...
  • Page 68 4. Troubleshooting Failure Display Codes Information code Meaning Solution Main↔Touch Check software version by pressing Keep Warm key C-F2 communication and 3 on number pad simultaneously for 3 seconds . information (Main : 1204 , Touch : 02) “C-F2” Check software version Main : 1204 Replace the PCB Touch : 02...
  • Page 69 4. Troubleshooting Failure Display Codes Information code Meaning Solution Check the display for location code . upper : Cooling motor information lower : Air intake motor information BLDC motor operation C-A2 information 2 . Check connection of the wire harness 3 .

  • Page 70: Checkpoints Before Service Request

    4. Troubleshooting 4-3 Checkpoints before service request SYMPTOM DIAGNOSIS REMEDY * Measure an input voltage . (120V) * Check circuit breaker . * Measure an input voltage of power cord * Make sure that the power cord is terminals . connected .
  • Page 71 4. Troubleshooting Checkpoints before service request SYMPTOM DIAGNOSIS REMEDY * Replace or repair if the harness is loose or * Check the oven lamp’s relay and disconnected . connector (CNP210,CNP211) . Oven lamp is not * Replace Main PCB . working .

  • Page 72: Pcbs & Membrane

    4. Troubleshooting 4-4 PCBs & Membrane Pictures of PCB and Membrane (Front) (Back) Membrane & Bracket Assembly (Front) (Back)
  • Page 73 4. Troubleshooting PCBs & Membrane * Explanation of Membrane Keypad NX58M6850S* Carbon touch Keypad 1. Membrane control panel allows user to operate the oven, oven light and Convection heater and clock and timer operation by touching the membrane on the control panel . 2.

  • Page 74: Troubleshooting

    4. Troubleshooting 4-5 Trouble shooting ■ No display No display CNP100 Make sure that power cord is connected Insert the power cord Check the voltage of the Power cord Replace the Power cord . connector housing . [120V] Check the voltage of the Wire harness A Replace the Wire harness A housing [CNP100] .
  • Page 75 4. Troubleshooting Trouble shooting ■ Touch Keypad is not working properly Membrane control keypads are not working properly Make sure the Door lock feature is not Press the Start/Set keypad turned on . for three or more seconds . Press the Timer On/Off Make sure the Sabbath feature is not and Clock for three or more...
  • Page 76 4. Troubleshooting Trouble shooting ■ Buzzer does not beep when keypad is touched Buzzer does not beep when keypad is touched. Faulty buzzer on PCB . Replace the PCB .
  • Page 77 4. Troubleshooting Trouble shooting ■ Cooktop burner not lightning up [Gas malfunction] No cooktop burners will light * Make sure the gas supply valve to *Fully open the gas supply valve . the range is fully open . * Check Gas pressure regulator to * Is the GPR shut-off lever in the open position .
  • Page 78 4. Troubleshooting Trouble shooting ■ Cooktop burners not lightning up [Electric malfunction] No cooktop Burners will light * Plug in the power cord and/or * Make sure there is power reset the circuit breaker for the to the range . range .
  • Page 79 4. Troubleshooting Trouble shooting ■ One cooktop burner not lightning up [Electric malfunction] One cooktop burner will not lightning.. Assemble the burner head and Check whether the burner head and cap on the right position . cap is properly assembled . Check the voltage of the Check the spark from the Replace the Spark...
  • Page 80 4. Troubleshooting Trouble shooting ■ Gas Leak Gas Leak Assemble the gas pipes on the Check if gas pipes at the back side right position . are properly assembled . (4 points) Check if gas pipes at the back of drawer Assemble the gas pipes correctly .
  • Page 81 4. Troubleshooting Trouble shooting ■ The flame looks abnormal. [Yellow tip / Lift flame] Burner orifice sizes and output rating Burner orifice sizes and output rating Yellow tip (LP Gas [Propane] 10 in WCP) (Natural Gas 5 in WCP) Burner Orifice Burner Orifice...
  • Page 82 4. Troubleshooting Trouble shooting ■ Flame size is too big or too small Flame size is too big or small. Replace the orifice nozzle. Check the orifice nozzle diameter. Reverse the direction of the orifice Check the orifice direction at GPR. [Upside down]...
  • Page 83 4. Troubleshooting Trouble shooting ■ Oven burner will not light [Broil / Bake burner] Oven burner will not light. Turn on the cooktop burners to check Open the gas valve . whether the gas is properly supplied Check the Check whether the Hot voltage(120V) at surface ignitor(HSI) is working Replace the PCB .
  • Page 84 4. Troubleshooting Trouble shooting ■ Oven temperature rises too slowly [Electric malfunction] Oven Temp rises to slowly. Turn on the cooktop burners to check Open the gas valve . whether the gas is properly supplied . Check the voltage(120V) of the PCB . Replace the PCB .
  • Page 85 4. Troubleshooting Trouble shooting ■ Oven temperature rises too fast. [Electric malfunction] Oven Temp rises to fast. * Check to see if oven exceeds 400℉(202℃) with in 9 minutes of room temperature operation . * Repair or replace the harness . * Check the harness connections at PCB terminals (RY201~RY204) and PCB connector(CN301) to make sure the...
  • Page 86 4. Troubleshooting Trouble shooting ■ Oven temperature rises too slow or too fast [Gas malfunction] Oven temperature rises too slow or too fast. * Make sure the gas supply valve to * Fully open the gas supply valve . the range is fully opened . * Check the GPR to make sure gas is * Is the GPR shut-off lever in the flowing through it.
  • Page 87 4. Troubleshooting Trouble shooting ■ Oven overheating in all cooking modes. Oven overheating in all cooking modes. Check for “C-21” on the display . (It appears when the oven Replace the temperature Temperature reaches 650℉ (343℃) sensor . in any cooking function, except self clean .) Replace the temperature Check the resistance of the oven...
  • Page 88 4. Troubleshooting Trouble shooting ■ Oven lamp not working Oven lamp is not working * Press and hold the lock * Make sure the control lockout keypad button for three or feature is not turned on . more seconds to unlock the unit .
  • Page 89 4. Troubleshooting Trouble shooting ■ Convection fan not working Convection fan not working. RY210 RY207 Measure resistance value of Motor Replace the Motor . terminal after taking off harness from Motor. [25Ω±7%] Measure the After pressing the Conv . Bake key, voltage of Replace the PCB .
  • Page 90 Troubleshooting (Wi-Fi connection) Step 1 . - Check whether display showed • If display showed icon, check to ‘Samsung Smart Home’ app . Delete and re-install the app . And then, try again (Follow manual instruction for samsung smart home app) .
  • Page 91 Troubleshooting (Wi-Fi connection) Step 1 . - Check whether display showed • If display showed icon, check to ‘Samsung Connect’ app . Delete and re-install the app . And then, try again (Follow manual instruction for samsung Connect app) .

  • Page 92: Wiring Diagrams

    5. Wiring Diagram 5. Wiring Diagram 5-1 Wiring Diagram COLOR GREEN BLACK BLUE BROWN YELLOW/ NOTE GREEN ORANGE GRAY 1. Input power:AC120 V 60 Hz YELLOW WHITE...

  • Page 93: Schematic Diagrams

    6. Schematic Diagrams 6. Schematic Diagrams 6-1 Schematic Diagram...

  • Page 94: Pcb Diagrams

    7. PCB Diagrams 7. PCB Diagrams 7-1 PCB Diagram NX58M6850S* (Main) PART No . PART NAME FUNCTION RULE PCB POWER CNP100 This is the connector that supplies 120VAC(L1~N) CNP210 LAMP, MOTOR This is the connector that connects the Lamp and motor CNP211 BROIL IN CNP208...

  • Page 95: Pcb Diagram Nx58M6850S

    7. PCB Diagrams 7-2 PCB Diagram NX58M6850S* PART No . PART NAME FUNCTION RULE Power Connector CN100 This is to supply power with SMPS . SLIDE_IN_VE PBA Connector CN300 This is connector which is connected with SLIDE_IN_VE PBA . Fan Control Connector CN200 This is connector which is connected with FAN to control .

  • Page 96: Pcb Diagram Nx58M6850S

    7. PCB Diagrams 7-3 PCB Diagram NX58M6850S* PART No . PART NAME FUNCTION RULE HASS Connector CN180 This is connector for Micom writing & HASS(Smart Test) . Main Communication Connector CN200 This is connector which is connected with Main PCB to communicate . BLDC-FAN- This is connector which is connected with BLDC-FAN-SUB PBA .

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